3. 1-Definition
Le nombre de pulsation
par unité de temps
notion quantitative
La manière dont
s’enchaine les pulsations
notion qualitative
Fréquence cardiaque Rythme cardiaque
Rythme cardiaque et fréquence cardiaque?
5. 2-Le système de conduction cardiaque
Depolarisation auriculaire: le signal électrique générer par le nœud sinusal va
parcourir dans les oreillettes vers le nœud AV
Apparition de l’onde P sur l’ECG
O.08s
6. Le segment PQ :le temps nécessaire à la transmission de
l’impulsion du nœud SA au nœud AV
2-Le système de conduction cardiaque
7. Depolarisation ventriculaire : le signale electrique passe par le faisceau
de His puis par le reseau de purkinje
Apparition des ondes Q,R,S (complexe QRS ) durant 0.12S
2-Le système de conduction cardiaque
8. Introduction
Les ventricules se contractent et pompent
du sang
Segment ST
La repolarisation ventriculaire
Apparition de l’onde T (0.16s)
9. 2-Rythme du nœud sinusale
Rythme sinusal
Un rythme est considéré sinusal lorsque l'influx électrique prend naissance
dans le noeud sinusal et se propage normalement.
.
Fréquence La fréquence cardiaque est normale car elle se situe entre 60 et 100 battements/minute.
Régularité du
rythme
Le rythme sinusal est régulier car il présente des intervalles PP et RR uniformes.
Ondes P Elles sont normales (moins de 0,12 seconde) et identiques.
Complexes QRS Ils sont de durée normale (entre 0,06 et 0,10 seconde) et constants d'un cycle à l'autre.
Ratio P:QRS 1:1 car chaque onde P entraîne un complexe QRS.
Intervalle PR Il est de durée normale (entre 0,12 et 0,20 seconde) et constant d'un cycle à l'autre.
11. Baradycardie sinusale
lorsque la fréquence est inférieure à 60 bpm, on appelle cet autre phénomène
bradycardie.
L'électrocardiogramme remplit toutes les caractéristiques propres au rythme
sinusal mais la fréquence cardiaque est inférieure à 60 bpm.
2-Rythme du nœud sinusale
13. Tachycardie sinusale
Lorsque la fréquence cardiaque dépasse les 100 bpm, on appelle ce phénomène
tachycardie
L'électrocardiogramme remplit toutes les caractéristiques décrites,
correspondantes au rythme sinusal, mais la fréquence qu'il affiche est supérieure à
100 bpm.
2-Rythme du nœud sinusale
15. Généralités
On parle de tachycardie
modérée quand les pulsations
cardiaques se situent entre 80 et 100
par minute.
La tachycardie intense se caractérise
par des battements supérieurs à 100
par minute.
16. Rythme Auriculaire
Fibrillation auriculaire
La fibrillation atriale, également
appelée fibrillation auriculaire (FA)
est le plus fréquent des trouble du
rythme cardiaque. Elle fait partie des
troubles du rythme supra-
ventriculaires. Elle correspond à une
action non coordonnée des
cellules myocardiques auriculaires,
entraînant une contraction rapide et
irrégulière des oreillettes cardiaques.
18. Rythme Auriculaire
Flutter auriculaire
Le flutter atrial est un trouble
du rythme supra-ventriculaire
responsable
d'une tachycardie soit
régulière soit irrégulière, en
fonction de la réponse
ventriculaire
20. Tachycardie supra ventriculaire
Tachycardie supra-ventriculaire
aussi connue comme (TSV) fait
référence a une fréquence
cardiaque anormalement élevé.
Tachycardie supra
ventriculaire
21. La Tachycardie Supra-Ventriculaire
La tachycardie se référence a une fréquence
cardiaque supérieur a 100bpm
généralement entre 140 et 250 bpm . Au
repos le rythme cardiaque d'une personne
devrait être au dessus de 100 .
Généralement les gens en bon santé ont
une fréquence cardiaque entre 50-80bpm
Mais y a des cas particuliers par exemple en
trouve des personnes qui arrive a 100bpm
selon les circonstances. . Pas exemple les
jeunes qui font le sport. Si vous courez 200
mettre vos muscles devient actif et ils
nécessitant plus d'oxygène par conséquence
votre cœur va augmenter sa fréquence afin
de fournir plus d'oxygène a tous les organes
22. 3-Rythme Ventriculaire
Fibrillation Ventriculaire
La fibrillation ventriculaire est une dépolarisation ventriculaire totalement
désorganisée et anarchique
Son seul traitement est l’application d’un choc électrique sur le thorax
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So
When we watch celebrities, politicians, or business leaders speak on television or in public, they seem so at ease that we may wonder: are great speakers made, or are they just born that way ? While it is true that some individuals are born with this gift, many effective public speakers have trained themselves to be so. Either they have received formal media training or they have delivered so many presentations that over time they’ve learned what works for them.
So